Hi folks, I'd like to do backups from inside a Xen VM that is in a heartbeat cluster, i. e. I have two physical servers with a DRBD link and a Xen VM that is managed via heartbeat. Everything is OpenSuSE 10.3.
The backup shall be done to a USB disk that is physically connected to one of the physical servers, but shall be disconnectable during runtime. So I decided to use NBD to "link" the USB device on one server inside the VM and mount the USB-NBD disk in the VM. After a couple of seconds after successfully connecting, I get inside the VM: Jun 10 22:05:44 lukas kernel: nbd0: Receive control failed (result -32) Jun 10 22:05:44 lukas kernel: nbd0: shutting down socket Jun 10 22:05:44 lukas kernel: nbd0: queue cleared ... and the NBD device is gone ... With option "-persist", it isn't really a solution because this happens a couple of times per minute ... Is there any reason I shouldn't do it the way I do it? The server: P1:~# nbd-server 12345 /dev/sdd1 The VM: lukas:~# nbd-client P1 12345 /dev/nbd0 -persist NBD version 2.9.5 from OpenSuSE 10.3. Thank you, Thomas
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